UiPath Assistant doesn't work

I recently installed studio and with that uipath assistant but when trying to run uipath assistant the application doesn’t work. There is no error but it never shows the uipath assistant interface. The studio version is the studio pro 2020 6.0 beta-93

Please check if the UiPath studio and assistant versions are in sync.
If not then uninstall and reinstall UiPath studio to latest version and your problem should get resolved.

how do i do that ? please help.